Bearing capacity of geocell reinforcement in embankment engineering

Zhang, Ling; Zhao, Minghua; Shi, Caijun; Zhao, Heng

doi:10.1016/j.geotexmem.2009.12.011

Cited by 177 publications

(58 citation statements)

References 14 publications

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“…With the improvement of the soil, bearing capacity is increased, settlements are decreased, and therefore surfacing thickness is decreased and surfacing performance is increased. A variety of ground improvement techniques including vertical drains, complete soil replacement, grouting, geosynthetic reinforcement, and lime stabilization are used in several structures such as highways, railways, airports, and embankment to improve the performance of soils [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Effects of Using Geosynthetics and Lime Stabilization to Increase Bearing Capacity of Unpaved Road Subgrade

Pancar

Akpınar

2016

Advances in Materials Science and Engineering

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So many soil improvement methods have been developed in order to increase bearing capacity of superstructure of the road to be constructed on the soft clayey road base soils, decrease settlements, and increase other strength specifications (CBR,k,MRvalues, etc.). In this paper, lime stabilization of clayey road base soil with high water content and its improvement with geosynthetics (geocell + geotextile) reinforcement and comparisons of these two different improvement methods were made. For this purpose, plate loading experimental comparisons of clayey soil, which had high water content by 10% increasing the optimum water content, were made after it was improved with lime at the rates of 3, 6, and 12%, geotextile reinforcement, geocell reinforcement, geosynthetics reinforcement, and geosynthetics reinforcement + lime stabilization at various rates. It was understood that these improvement methods will not yield sufficient results on clayey soils with high water content on their own, and method of improvement with lime and then reinforcement with geosynthetics yields better results on these types of soils. Only one improvement state among ten different states examined in this study gave the sufficient results for the soil to be used for unpaved roads.

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Section: Introductionmentioning

confidence: 99%

Comparison of Effects of Using Geosynthetics and Lime Stabilization to Increase Bearing Capacity of Unpaved Road Subgrade

Pancar

Akpınar

2016

Advances in Materials Science and Engineering

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“…Therefore, the additional advantage of geocell makes it superior to other types of reinforcement inclusions in increasing the bearing capacity of foundations and embankments and reducing footing settlements. Zhang et al [1] reviewed the main geocell layer mechanisms as lateral resistance e ect, vertical stress distribution e ect, and tensioned membrane e ect.…”

Section: Introductionmentioning

confidence: 99%

Effect of reinforcement geometry on the performance of a reduced-scale strip footing model supported on geocell reinforced sand

Kargar

Hosseini

2017

Scientia Iranica

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Abstract. Geocell is an e ective type of geosynthetics for improving the performance of reinforced soil foundations due to provision of lateral con nement for the in ll soil. In this research, in order to study the bearing pressure-settlement response of geocellreinforced sand, a reduced-scale physical model is developed and geocells with various geometrical dimensions (height, pocket size, and width) produced from woven geotextile are used to reinforce sand bed. Strip footing model is then loaded monotonically to ultimate failure level, and the in uence of geocell geometrical properties on the improvement in bearing capacity and settlement of footing is described. The results show that by increasing height and decreasing pocket size of geocell, the bene cial e ect of geocell reinforcement increases substantially. For the highest geocell used in the tests at settlement level of 6%, improvement in bearing capacity and percentage reduction in footing settlement are obtained as 2.1 and 48%, respectively. The optimum width of geocell is determined ve times the foundation width beyond which the improvement e ect is negligible. It is also concluded that substituting a single layer of geocell reinforcement with 2 half-height and 4 quarter-height geocell layers results in 10% and 22% decrease in the ultimate bearing capacity, respectively.

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“…Numerous researches have been done in semi-rigid base asphalt pavement cracks. Research of geocell-supported embankments on the soft subgrade shows that geocell reinforcement can improve the structure capacity (Zhang & Zhao, 2010). Laboratory model tests on soft subsoil embankments show that the reinforcement has a positive effect on embankment stability (Chai, Miura, & Shen, 2002).…”

Section: Introductionmentioning

confidence: 99%

Loading capacity strengthening to cement-stabilised crushed gravel using reinforced wire mesh

et al. 2014

Road Materials and Pavement Design

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Sanjeev Adhikari (2014) Loading capacity strengthening to cement-stabilised crushed gravel using reinforced wire mesh, Road Materials and Pavement Design, 15:3, 733-745, Settlement and non-uniform deformation of frozen soil subgrade introduce fatal cracks on semirigid base asphalt pavements. This research aims to use reinforced wire mesh to reduce serious cracks on semi-rigid asphalt pavements in frozen regions. Three impact factors, diameter and interval as well as two types of wire mesh have been analysed by loading tests. Results have shown that after setting the reinforced wire mesh: (a) failure load and displacement of the cement-stabilised crushed gravel samples have been improved; (b) diameter and interval of the wire mesh have interactive impacts on reinforced sample load capacity; (c) the reinforced wire mesh can limit cracks by redistributing stress in the specimen; and (d) the multiple linear regression model well reflects the variation of loading properties; the results make sense from the statistics view as well. Results also represent that the strengthened wire mesh can help spread out the applied load, and increase the overall loading capacity of cement-stabilised crushed gravel. The results provided a reference for semi-rigid base asphalt pavement cracks caused by non-uniform deformation on frozen soil subgrade as well as guidelines for construction and maintenance in frozen regions.

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Bearing capacity of geocell reinforcement in embankment engineering

Cited by 177 publications

References 14 publications

Comparison of Effects of Using Geosynthetics and Lime Stabilization to Increase Bearing Capacity of Unpaved Road Subgrade

Comparison of Effects of Using Geosynthetics and Lime Stabilization to Increase Bearing Capacity of Unpaved Road Subgrade

Effect of reinforcement geometry on the performance of a reduced-scale strip footing model supported on geocell reinforced sand

Loading capacity strengthening to cement-stabilised crushed gravel using reinforced wire mesh

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